The calculated distance (air line) between Yŏmju-ŭp and Sunch’ŏn is approximately 78 miles respectively 125 kilometers.
By car or train, the actual journey to Sunch’ŏn is certainly longer, as only the direct route (as the crow flies) between Yŏmju-ŭp and Sunch’ŏn has been calculated here.